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A183470 Number of nX5 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors 1

%I #5 Mar 31 2012 12:35:51

%S 6,68,374,2769,21280,153291,1140298,8501730,63020066,468581721,

%T 3484714268,25901230607,192574316408,1431802305390,10645025312976,

%U 79144742442479,588434457795260,4374940448305943,32527247664643690

%N Number of nX5 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors

%C Column 5 of A183474

%H R. H. Hardin, <a href="/A183470/b183470.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4X5

%e ..1..1..0..1..1....0..1..0..1..1....1..0..0..0..0....0..0..1..1..1

%e ..1..1..0..1..1....0..1..1..0..0....1..0..0..0..0....0..0..1..1..1

%e ..1..1..0..1..1....0..1..0..1..1....0..0..1..1..0....0..0..0..0..0

%e ..1..1..1..0..1....0..0..0..1..1....0..0..1..1..0....1..1..0..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 05 2011

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)